mr_nismo said:
Hi;
Sorry to hijack people but...
These prices seem somewhat high to me for what it is! Surely all you need is a PTFE gasket of roughly 2-3mm thickness... as long as fitting this doesn't become an issue over the std gasket thickness? Long time since I owned a pulsar so I can't remember to be honest.
I am probably preaching to the converted here but PTFE has been used in the motorsport world for years because it doesn't conduct heat there is no transfer between head and inlet, thus keeping intake temps down. I recently made an inlet manifold gasket and throttle body gasket for a 1.8 16v clio (hot as *** engine bay) and the reductions were very impressive!
Is there just one inlet manifold gasket you change here?
- if so has anyone got the part no for the OE one or got a spare one knocking about.
Are there anymore gaskets on the intake side which could be replaced for benefit too - i.e. off the throttle body, etc?
I'll then see (if enough people want them that is) if I can get batches made up out of PTFE, lazer cut and offer them to you at a better price - I'd estimate nearer £25-30.
Cheers
Chris
You're right, they are very over priced for what they are. If you look on eBay.com, you should find a PTFE equivalent for around £25 delivered.
If you were to make them from PTFE, it would need to be the correct grade. It would also need to be around 3mm thick (the Hondata ones are 3.2mm thick). If you have a look on the web, there have been attempts to 'DIY' these. That's where you will see what grade of PFTE you need to withstand the heat generated by an engine.
There is only 1 gasket that's worthwhile doing on the inlet side. That's the one between the throttle bodies and the head. This will be 1 piece also, as with the ones currently available for the GTiR.
You could put one between the throttle bodies and the plenum but, this would only serve to increase plenum capacity. Clearly, it's the throttle bodies you're trying to isolate.
Paul